bugs.cpp

#include <cstdio>
#include <cstring>
using namespace std;
 
#define NULLCHAR 2
 
inline bool match_delete(const int index, const int B_len, const char B[], char LINE[]){
	int b=0, l = index;
	while (b < B_len){
		while (LINE[l] == NULLCHAR){
			l++;
		}
 
		if(B[b] != LINE[l]){
			return false;
		}
 
		b++;
		l++;
	}
 
	for (int i = index; i < l; i++){
		LINE[i] = NULLCHAR;
	}
	return true;
}
 
int main()
{
	int N;
	char B[1010];
	char LINE[2000010];
	while (scanf("%d %1005s", &N, B) == 2) {
		gets(LINE);
		int B_len = strlen(B);
		for (int row = 0; row < N; row++) {
			gets(LINE);
			int index = 0;
			while (LINE[index] != '\0') {
				if (LINE[index] == B[0]){
					if (match_delete(index, B_len,  B, LINE)){
						index -= B_len;
						if (index < 0){
							index = 0;
						}
					}
				}
				index++;
			}
			index = 0;
			while (LINE[index] != '\0'){
				if (LINE[index] != NULLCHAR){
					printf("%c", LINE[index]);
				}
				index++;
			}
			printf("\n");
		}
	} 
	return 0;
}